forked from OSchip/llvm-project
66 lines
2.0 KiB
C++
66 lines
2.0 KiB
C++
//===-- msan_new_delete.cc ------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of MemorySanitizer.
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//
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// Interceptors for operators new and delete.
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//===----------------------------------------------------------------------===//
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#include "msan.h"
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#include "sanitizer_common/sanitizer_interception.h"
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#if MSAN_REPLACE_OPERATORS_NEW_AND_DELETE
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#include <stddef.h>
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namespace __msan {
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// This function is a no-op. We need it to make sure that object file
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// with our replacements will actually be loaded from static MSan
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// run-time library at link-time.
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void ReplaceOperatorsNewAndDelete() { }
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}
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using namespace __msan; // NOLINT
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// Fake std::nothrow_t to avoid including <new>.
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namespace std {
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struct nothrow_t {};
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} // namespace std
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#define OPERATOR_NEW_BODY \
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GET_MALLOC_STACK_TRACE; \
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return MsanReallocate(&stack, 0, size, sizeof(u64), false)
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INTERCEPTOR_ATTRIBUTE
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void *operator new(size_t size) { OPERATOR_NEW_BODY; }
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INTERCEPTOR_ATTRIBUTE
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void *operator new[](size_t size) { OPERATOR_NEW_BODY; }
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INTERCEPTOR_ATTRIBUTE
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void *operator new(size_t size, std::nothrow_t const&) { OPERATOR_NEW_BODY; }
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INTERCEPTOR_ATTRIBUTE
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void *operator new[](size_t size, std::nothrow_t const&) { OPERATOR_NEW_BODY; }
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#define OPERATOR_DELETE_BODY \
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GET_MALLOC_STACK_TRACE; \
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if (ptr) MsanDeallocate(&stack, ptr)
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INTERCEPTOR_ATTRIBUTE
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void operator delete(void *ptr) throw() { OPERATOR_DELETE_BODY; }
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INTERCEPTOR_ATTRIBUTE
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void operator delete[](void *ptr) throw() { OPERATOR_DELETE_BODY; }
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INTERCEPTOR_ATTRIBUTE
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void operator delete(void *ptr, std::nothrow_t const&) { OPERATOR_DELETE_BODY; }
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INTERCEPTOR_ATTRIBUTE
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void operator delete[](void *ptr, std::nothrow_t const&) {
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OPERATOR_DELETE_BODY;
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}
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#endif // MSAN_REPLACE_OPERATORS_NEW_AND_DELETE
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